1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "tools.h"
int vgcreate(struct cmd_context *cmd, int argc, char **argv)
{
struct processing_handle *handle;
struct pvcreate_each_params pp;
struct vgcreate_params vp_new;
struct vgcreate_params vp_def;
struct volume_group *vg;
const char *tag;
const char *clustered_message = "";
char *vg_name;
struct arg_value_group_list *current_group;
uint32_t rc;
if (!argc) {
log_error("Please provide volume group name and "
"physical volumes");
return EINVALID_CMD_LINE;
}
vg_name = argv[0];
argc--;
argv++;
pvcreate_each_params_set_defaults(&pp);
if (!pvcreate_each_params_from_args(cmd, &pp))
return EINVALID_CMD_LINE;
pp.pv_count = argc;
pp.pv_names = argv;
/* Don't create a new PV on top of an existing PV like pvcreate does. */
pp.preserve_existing = 1;
/* pvcreate within vgcreate cannot be forced. */
pp.force = 0;
if (!vgcreate_params_set_defaults(cmd, &vp_def, NULL))
return EINVALID_CMD_LINE;
vp_def.vg_name = vg_name;
if (!vgcreate_params_set_from_args(cmd, &vp_new, &vp_def))
return EINVALID_CMD_LINE;
if (!vgcreate_params_validate(cmd, &vp_new))
return EINVALID_CMD_LINE;
/*
* Needed to change the global VG namespace,
* and to change the set of orphan PVs.
*/
if (!lockd_gl_create(cmd, "ex", vp_new.lock_type))
return_ECMD_FAILED;
cmd->lockd_gl_disable = 1;
lvmcache_seed_infos_from_lvmetad(cmd);
/*
* Check if the VG name already exists. This should be done before
* creating PVs on any of the devices.
*/
if ((rc = vg_lock_newname(cmd, vp_new.vg_name)) != SUCCESS) {
if (rc == FAILED_EXIST)
log_error("A volume group called %s already exists.", vp_new.vg_name);
else
log_error("Can't get lock for %s.", vp_new.vg_name);
return ECMD_FAILED;
}
/*
* FIXME: we have to unlock/relock the new VG name around the pvcreate
* step because pvcreate needs to destroy lvmcache, which doesn't allow
* any locks to be held. There shouldn't be any reason to require this
* VG lock to be released, so the lvmcache destroy rule about locks
* seems to be unwarranted here.
*/
unlock_vg(cmd, vp_new.vg_name);
if (!(handle = init_processing_handle(cmd))) {
log_error("Failed to initialize processing handle.");
return ECMD_FAILED;
}
if (!pvcreate_each_device(cmd, handle, &pp)) {
destroy_processing_handle(cmd, handle);
return_ECMD_FAILED;
}
/* Relock the new VG name, see comment above. */
if (!lock_vol(cmd, vp_new.vg_name, LCK_VG_WRITE, NULL)) {
destroy_processing_handle(cmd, handle);
return_ECMD_FAILED;
}
/*
* pvcreate_each_device returns with the VG_ORPHANS write lock held,
* which was used to do pvcreate. Now to create the VG using those
* PVs, the VG lock will be taken (with the orphan lock already held.)
*/
if (!(vg = vg_create(cmd, vp_new.vg_name)))
goto_bad;
if (vg->fid->fmt->features & FMT_CONFIG_PROFILE)
vg->profile = vg->cmd->profile_params->global_metadata_profile;
if (!vg_set_extent_size(vg, vp_new.extent_size) ||
!vg_set_max_lv(vg, vp_new.max_lv) ||
!vg_set_max_pv(vg, vp_new.max_pv) ||
!vg_set_alloc_policy(vg, vp_new.alloc) ||
!vg_set_clustered(vg, vp_new.clustered) ||
!vg_set_system_id(vg, vp_new.system_id) ||
!vg_set_mda_copies(vg, vp_new.vgmetadatacopies))
goto_bad;
/* attach the pv's */
if (!vg_extend_each_pv(vg, &pp))
goto_bad;
if (vp_new.max_lv != vg->max_lv)
log_warn("WARNING: Setting maxlogicalvolumes to %d "
"(0 means unlimited)", vg->max_lv);
if (vp_new.max_pv != vg->max_pv)
log_warn("WARNING: Setting maxphysicalvolumes to %d "
"(0 means unlimited)", vg->max_pv);
if (arg_count(cmd, addtag_ARG)) {
dm_list_iterate_items(current_group, &cmd->arg_value_groups) {
if (!grouped_arg_is_set(current_group->arg_values, addtag_ARG))
continue;
if (!(tag = grouped_arg_str_value(current_group->arg_values, addtag_ARG, NULL))) {
log_error("Failed to get tag");
goto bad;
}
if (!vg_change_tag(vg, tag, 1))
goto_bad;
}
}
if (vg_is_clustered(vg))
clustered_message = "Clustered ";
else if (locking_is_clustered())
clustered_message = "Non-clustered ";
if (!archive(vg))
goto_bad;
/* Store VG on disk(s) */
if (!vg_write(vg) || !vg_commit(vg))
goto_bad;
/*
* The VG is initially written without lock_type set, i.e. it starts as
* a local VG. lockd_init_vg() then writes the VG a second time with
* both lock_type and lock_args set.
*/
if (!lockd_init_vg(cmd, vg, vp_new.lock_type, 0)) {
log_error("Failed to initialize lock args for lock type %s",
vp_new.lock_type);
vg_remove_pvs(vg);
vg_remove_direct(vg);
goto_bad;
}
unlock_vg(cmd, VG_ORPHANS);
unlock_vg(cmd, vp_new.vg_name);
backup(vg);
log_print_unless_silent("%s%colume group \"%s\" successfully created%s%s",
clustered_message, *clustered_message ? 'v' : 'V', vg->name,
vg->system_id ? " with system ID " : "", vg->system_id ? : "");
/*
* Start the VG lockspace because it will likely be used right away.
* Optionally wait for the start to complete so the VG can be fully
* used after this command completes (otherwise, the VG can only be
* read without locks until the lockspace is done starting.)
*/
if (is_lockd_type(vg->lock_type)) {
const char *start_opt = arg_str_value(cmd, lockopt_ARG, NULL);
if (!lockd_start_vg(cmd, vg, 1)) {
log_error("Failed to start locking");
goto out;
}
lockd_gl(cmd, "un", 0);
if (!start_opt || !strcmp(start_opt, "wait")) {
/* It is OK if the user does Ctrl-C to cancel the wait. */
log_print_unless_silent("Starting locking. Waiting until locks are ready...");
lockd_start_wait(cmd);
} else if (!strcmp(start_opt, "nowait")) {
log_print_unless_silent("Starting locking. VG is read-only until locks are ready.");
}
}
out:
release_vg(vg);
destroy_processing_handle(cmd, handle);
return ECMD_PROCESSED;
bad:
unlock_vg(cmd, vp_new.vg_name);
unlock_vg(cmd, VG_ORPHANS);
release_vg(vg);
destroy_processing_handle(cmd, handle);
return ECMD_FAILED;
}
|
